From: Shmulik Ladkani <shmulik@metanetworks.com>
Date: Fri, 7 Dec 2018 07:50:17 +0000 (+0200)
Subject: ipv6: sr: properly initialize flowi6 prior passing to ip6_route_output
X-Git-Tag: v4.14.89~87
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=25f111f2432d69a5014503dc27cf729d6adea285;p=users%2Fjedix%2Flinux-maple.git

ipv6: sr: properly initialize flowi6 prior passing to ip6_route_output

[ Upstream commit 1b4e5ad5d6b9f15cd0b5121f86d4719165958417 ]

In 'seg6_output', stack variable 'struct flowi6 fl6' was missing
initialization.

Fixes: 6c8702c60b88 ("ipv6: sr: add support for SRH encapsulation and injection with lwtunnels")
Signed-off-by: Shmulik Ladkani <shmulik.ladkani@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/net/ipv6/seg6_iptunnel.c b/net/ipv6/seg6_iptunnel.c
index bf4763fd68c22..cf9342bfe95a3 100644
--- a/net/ipv6/seg6_iptunnel.c
+++ b/net/ipv6/seg6_iptunnel.c
@@ -327,6 +327,7 @@ static int seg6_output(struct net *net, struct sock *sk, struct sk_buff *skb)
 		struct ipv6hdr *hdr = ipv6_hdr(skb);
 		struct flowi6 fl6;
 
+		memset(&fl6, 0, sizeof(fl6));
 		fl6.daddr = hdr->daddr;
 		fl6.saddr = hdr->saddr;
 		fl6.flowlabel = ip6_flowinfo(hdr);